[INFO] cloning repository https://github.com/trezm/templatify-macro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trezm/templatify-macro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrezm%2Ftemplatify-macro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrezm%2Ftemplatify-macro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8471d70be5d714b8574bc13becc9140bfe186739
[INFO] documenting trezm/templatify-macro against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrezm%2Ftemplatify-macro" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/trezm/templatify-macro on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/trezm/templatify-macro
[INFO] finished tweaking git repo https://github.com/trezm/templatify-macro
[INFO] tweaked toml for git repo https://github.com/trezm/templatify-macro written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/trezm/templatify-macro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c992752009acf5f3c4ea34f6fa256d8b1af1b15e01d68a495881d3776aaacdc
[INFO] running `Command { std: "docker" "start" "-a" "0c992752009acf5f3c4ea34f6fa256d8b1af1b15e01d68a495881d3776aaacdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c992752009acf5f3c4ea34f6fa256d8b1af1b15e01d68a495881d3776aaacdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c992752009acf5f3c4ea34f6fa256d8b1af1b15e01d68a495881d3776aaacdc", kill_on_drop: false }`
[INFO] [stdout] 0c992752009acf5f3c4ea34f6fa256d8b1af1b15e01d68a495881d3776aaacdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 99308c7f56a8dc746f1dc579137144ea4f1f0603552c61ccac022257f0f180d7
[INFO] running `Command { std: "docker" "start" "-a" "99308c7f56a8dc746f1dc579137144ea4f1f0603552c61ccac022257f0f180d7", kill_on_drop: false }`
[INFO] [stderr]     Checking proc-macro2 v0.3.5
[INFO] [stderr]     Checking quote v0.5.1
[INFO] [stderr]     Checking syn v0.13.1
[INFO] [stderr]  Documenting templatify-macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `templatify-macro`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type proc-macro --crate-name templatify_macro src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7dba2b37e1c05768 -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9f42090b13fc8eb4.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-26366c1b6a3fdd2c.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-673a1b99965739bf.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "99308c7f56a8dc746f1dc579137144ea4f1f0603552c61ccac022257f0f180d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99308c7f56a8dc746f1dc579137144ea4f1f0603552c61ccac022257f0f180d7", kill_on_drop: false }`
[INFO] [stdout] 99308c7f56a8dc746f1dc579137144ea4f1f0603552c61ccac022257f0f180d7